Finding the Third Proportional to 131,020 and 307,978

Step by Step Solution

1. Step 1: Write the proportion equation
   131,020 : 307,978 = 307,978 : x
2. Step 2: Convert to fraction form
   131,020/307,978 = 307,978/x
3. Step 3: Cross multiply
   131,020x = 307,978 × 307,978
4. Step 4: Simplify right side
   131,020x = 94,850,448,484
5. Step 5: Solve for x
   x = 94,850,448,484/131,020
6. Step 6: Final answer
   x = 723,938.70